The invention discloses a subsea pipeline recovery method, which belongs to the technical field of ocean engineering, and comprises the following steps: S1, cutting a subsea pipeline to be recovered underwater; s2, binding a floating bag and a traction rope on the cut subsea pipeline; s3, the air bag is used for inflating the floating bag; s4, the floating belt drives the subsea pipeline to be lifted to the water surface; and S5, the subsea pipeline located on the water surface is pulled to the barge through the pulling rope. According to the method, the subsea pipelines are lifted through floating assistance of the floating bags, crane resources are replaced, only small tugs or barges need to be mobilized, floating crane resources are liberated, the construction cost is reduced, and the method is particularly suitable for recycling the subsea pipelines discarded in a short distance.

    本发明公开了一种海管回收方法,属于海洋工程技术领域,包括以下步骤:S1、将需要回收的海管在水下切割;S2、在切割完成的海管上绑扎浮袋和牵引绳;S3、利用气袋向浮袋充气;S4、浮带带动海管提升至水面上;S5、通过牵引绳将位于水面上的海管拉至驳船上。本发明利用浮袋助浮提升海管,替代吊机资源,该方法只需要动员小型拖轮或者驳船,解放浮吊资源,降低施工成本,特别适宜于短距离弃置海管的回收。


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    Title :

    Subsea pipeline recovery method


    Additional title:

    一种海管回收方法


    Contributors:
    ZHAO GANG (author) / SUN DAOQING (author) / DU YING (author) / LIU JIANFENG (author) / JIANG YUFEI (author) / ZHOU JIAN (author) / HAN JINGYAN (author) / LIU GUANLIANG (author) / WANG YONG (author)

    Publication date :

    2024-06-21


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Chinese


    Classification :

    IPC:    B63C LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS , Zuwasserlassen, Trockenstellen, Docken oder Bergen von Schiffen / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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